Carbohydrate Supplementation and Resistance Exercise Performance in Males Undergoing Energy Restriction

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dc.contributor.authorDalton, Renee A. IIIen
dc.contributor.committeechairRankin, Janet L. Walbergen
dc.contributor.committeememberSebolt, Don R.en
dc.contributor.committeememberWebb, Kenneth E. Jr.en
dc.contributor.departmentHuman Nutrition, Foods, and Exerciseen
dc.date.accessioned2014-03-14T20:52:20Zen
dc.date.adate1997-08-08en
dc.date.available2014-03-14T20:52:20Zen
dc.date.issued1997-07-25en
dc.date.rdate1998-08-08en
dc.date.sdate1997-07-25en
dc.description.abstractThis study examined the effects of carbohydrate supplementation on resistance exercise performance, cortisol levels, and creatine kinase levels in trained males undergoing energy restriction. Sixteen experimental subjects were randomly assigned to a carbohydrate (C, n=8) or placebo group (P, n=8). The remaining six subjects served as controls (N). Performance tests were done before (Trials 1 and 2) and after (Trial 3) energy restriction. Experimental subjects consumed a low calorie formula diet for three days (18 kcal-1 kg-1 d-1). They had blood drawn before and after T2 and T3. For T3, they consumed either a carbohydrate (1g kg-1) or a placebo beverage 30 minutes before exercise. There was a significant increase in resting cortisol levels following energy restriction. CK levels were significantly elevated after exercise, suggestion muscle damage. Carbohydrate supplementation had no effect on blood glucose, cortisol, creatine kinase, or RPE. The number of repetitions performed during the final set of bench press showed significant interaction between groups and time. P and N increased the number of repetitions performed from T2 to T3 (15.0 + 1.4 to 17.3 + 0.8 for P, 15.0 + 2.7 to 16.7 + 2.3 for N). C decreased the number of repetitions performed 17.6 + 0.7 to 17.3 + 1.0). The number of repetitions performed during the final set of leg extensions showed no interaction between groups and time (p=0.801). This study did not support a benefit of consuming carbohydrate prior to resistance exercise for dieting athletes but illustrates that energy restriction increases a catabolic hormone.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-7697-22201en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-7697-22201/en
dc.identifier.urihttp://hdl.handle.net/10919/36960en
dc.publisherVirginia Techen
dc.relation.hasparttpage.pdfen
dc.relation.haspartfront.pdfen
dc.relation.haspartch1.pdfen
dc.relation.haspartch2.pdfen
dc.relation.haspartch3.pdfen
dc.relation.haspartch4.pdfen
dc.relation.haspartback.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcarbohydrate supplementationen
dc.subjectresistance exerciseen
dc.subjectenergy restrictionen
dc.subjectcortisolen
dc.subjectcreatine kinaseen
dc.titleCarbohydrate Supplementation and Resistance Exercise Performance in Males Undergoing Energy Restrictionen
dc.typeThesisen
thesis.degree.disciplineHuman Nutrition, Foods, and Exerciseen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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